A contract is to paint 3 houses. Mr brown takes 6 days to
paint a house. Mr black takes 8 days and Mr blue 12 days. Mr
brown leaves for a vacation after 8 days. Mr black works for
6 days from then.How many days would Mr blue require to
complete the contract?
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Answer Posted / scrappy-coco
a tiny bit of modification in the first answer.
Mr. Brown completes 4/3 rd of a house
Mr. Black completes 3/4 th of a house
Mr. Blue completes x/12 th of a house
It is evident that 4/3+3/4+x/12=3
i.e. (x+25)/12=3
i.e. x=11
So Mr. Blue takes 11 days
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